Which Side of Aluminum Foil to Use?
With regular aluminum foil, it doesn’t matter which side of aluminum foil is used. The exception to this rule is the non-stick type of aluminum foil.
Non-stick foil is a good choice when baking dishes that can get sticky, like macaroni and cheese. With non-stick foil it’s best to read the package directions from the manufacturer as to which side to use towards the food. One side contains the non-stick coating and is usually labeled with some type of wording, depending on the manufacturer. The words are generally then placed toward the food to help prevent sticking when baking.
Note: Aluminum foil is recyclable! Recycling plants generally prefer folded aluminum foil, so try to resist the urge to crinkle it into a tight ball before tossing it into the recycle bin.